Four short links: 21 September 2011

Gun Part on Thingiverse — we’re used to thinking of the legal problems caused by cheap and decentralized copies of digital works. Now the problems we had with pipe bombs (designs are free on the net, the parts are cheap) are just as applicable to every type of restricted object (in this case, a gun). The difference between regulating speech (design of an object) and regulating possession of objects is blurring and it’ll be interesting to see where this goes. (via Jesse Robbins)